Nonset phonograph stop



June 24, 1924. 1,499,162

J. FASTJE NONSET PHONOGRAPH STOP Fil J n 20. 192] 2 SheeLsShee1 1 fi'z'gi T scribed. hereinafter, and will be more par- Patented June 24, 1924.

Arsar DFFiC JOHN FASIJE, or :onursoiv. IOWA.

NONSET PHIONOGRAPI-I STOP.

Application filed June 20,1921. Serial No. 479,023.

. To all whom it may concern:

Be it known that JOHN FAsTJE, a citizen of the United States, residing at Denison, in the county of Crawford and State of Iowa, has invented certain new and useful Improvements in Nonset Phonograph Stops, of which the following is a specification.

The present invention relates to phonographs, and more particularly to that type of devices known as stops to arrest the turning of the rotary table upon the completion of the playing of a record.

An object of the present invention is to provide an automatic stop orbrake which requires no setting and which will automatically arrest the rotation of the table at any pause in the turning or operation of the tone arnr so that the mechanism will be caused to operate irrespective of thesi'ze of the record or the length of thesound groove therein.

Another object of the invention is to provide a non'set automatic stop of this character which may be quickly and easily installed on talking machines of present-day construction and without alteration or changes in the location or construction of the parts thereof. a I

Vith the foregoing and other objects in view, the invention will be more fully deticularly pointed out in the claims appended hereto. 7 In the drawings, wherein like symbols refer to like or corresponding parts throughout the several views, r I

Fig. 1 is a top plan view partly in section and partly broken away showing the arrangement of a stop or brake constructed according to the present invention as applied to a talking machine; 7

Fig. 2 is a fragmentary sectional view taken through the same substantially on the line 22 of Fig. 1;

Fig. 3 is a transverse section taken through the removable collar for the tone arm, substantially-on the line -33 of Fig. and r I p Fig. 4. is a detail sectional view taken on the line 1-4 through Fig. 1 and showing the brake retaining andreleasing parts.

Referring to the drawing, the device comprises a collar 10 of suitable size ada'ptedto slide freely over a tone arm 11. The'collar 10 has an exterior annular groove12 near the'lower edge of the collar and in which is slidablyi'and frictionally fitted a split ring 13. The collar 10 is detachably'mounted upon the tone arm 11 in any suitable manner, such as by means of one or more set screws 14:. The set screws-are threaded through the collar and are adapted to bind frictionally against the outer surface of the tone arm.

The collar 10 thusturns" as a unit with-the tone arm. The split ring 13 is formed upon the inner end of a rocker arm 15, thelatter projecting from the' collar 10 and adapted to engage at its outer end portion a stop or rest 16. The stop 16 comprises an angular plate, the face of which is slotted to receive a clamping screw 17adapted to be turned down into the face of the bed plate 18 of the phonograph. r i V Arranged at one side of the table 19 of the phonograph" is a plate 20 secured by screws or the like to the upper face of the bed plate 18 and which projects beneath the table 19 for a purpose which will'hereinafter appear. The outer end portion of the plate 20' is provided with an upstanding shaft or stud 21 upon whichis mounted a disc 22, having a knob or handle22 on its upper face by means of which thedisc may be manually turned. The disc is connected eccentrically to one end of a connecting rod 23 which has its other end pivotally attached to the vibrating arm 15. The disc 22 is provided at one side with a peripheral recess 24 which opens into an under-cut cavity 25 and thelatter terminates in a downwardly di rected cam face 26. v V An upstanding bracket 27 is'carried by the plate 20 and pivotally supports a latch lever 28, engaging thelever 28 at an intermediate portion whereby the lever 28 may rock upon the support 27. The lever 28 has a shorter end which is preferably reduced in width and which engages in the recess 24: and in the cavity 25. The nose or reduced end of the lever 28 is adapted to be engaged by thecam face 26 when the disc 22 isturned sufiiciently to register the cam face with the lever. The longer end of the lever 28 is provided with a depending finger 29 adapted to engage over' and against the remote edge of a relativelytransversely disposed brake lever 30 which is pivoted upon a pin 31 on the upper face of the plate 20.

The brake lever 30 is urged by. a spring 82 resilient foot piece 33' of cork, rubber,-felt or other suitable material adapted not only to eliminate sound by striking oi the brake lever against the table, but to also afford suflicient frictional contact between the moving parts to bring the table to a stop within a relatively short time. 7

Preferably, the foot piece 33 is mounted in an angularly projecting portion 34 oi the brake lever, the portion 34 being so arranged as to bring the foot piece 33 substantially into flat faced engagement with the peripheral edge of the table. The other end of the brake lever 30 is provided with a finger piece or knob 35 by means of which the brake lever may be quickly rocked back into releasing position and into'interlocking engage V mentrwith the latch lever 28.

The disc 22 is provided with a pair of diverging spaced apart pins 36 and 37 which project beneath the table 19 for a purpose which will subsequently appear. The plate 20 carries upon its inner end an upstanding stud 38 upon which is mounted a disc or pulley 39, and'the disc 39 extends into overlapping relation with respect to the pins 36 and 37 and has a depending striker stud 40 adapted to engage the end portions of the pins 36 and 37 for rocking the disc 22.

The pulley or disc 39 is connected by a belt 41 to a small pulley 42 connected to a large pulley 43, and the latter is driven by a belt 44 from a drive pulley 45 which is mounted upon the spindle or main shaft 46 ot the phonograph. The drive pulley 45 may be provided with a hub portion 47 of any suitable construction and which may be fitted to the spindle 46 and detachably secured thereto by any suitable means, such as by set screws 48,01 the like. The provision of drive belts 41 and 44 insures the silent running of the pulleys during the ro tation of the table 19. The reduction pulleys 42 and 43 are mounted upon a shaft 49 which is carried upon a bracket plate 50 secured to the bed plate 18 of the phonograph and in suitable position beneath the table 19.

In'use, the tone arm 11 is moved to a position of registry with the beginning of the sound groove in the record and the vibrating arm 15 is, during this adjustment of the tone arm 11, held against the stop 16. The brake lever 30 is swung away from the table 19 and to an extent suiiicient to permit the latch lever 28 to snap overthe brake lever for holding the latter in releasing position. As soon as the vibrating lever 15 is moved against the stop 16, the disc 22 is turned into such position as to dispose the nose of. the latch lever in the cavity 25 ot the disc so that the latch lever may remain in interlocking engagement with the brake lever.

Asrthe table 19 turns the various pulleys cause the rotation of the disc or pulley 39 and the latter is'driven in suitable ratio to the turning of the table 19, such as the ratio of one revolution of the disc 39 to ten'revolutions of the table 19. As the arm 15 is trictionally mounted upon the tone'arm, the tone arm is permitted. to slip in the ring 13 and consequently the vibrating arm is held against the stop 16. In this position the pin 36 of the disc 22 lies in the path of the striker stud 40 so that the latter is adapted to strike the end of the pin 36, rock the disc 22 into such position as to move the vibrating arm 15, away from its stop 16, and position the pin 37 forengagementwith the stud 40 when the latter completesits next revolution. 7

However, as the tone arm 11 is continually advanced toward the axis ofrotation ot the table 19, the vibrating arm 15 is moved again into contact with the stop 16. This return movement of the arm 15 causes the disc 22 to be rocked back into its normal position and bring the pin 36 into the path of the stud 40 and remove the pin 37, out of the path of the pin 40. Thus, this operation is continued until the tone arm 11 reaches the inner end of the sound groove. Atsuch time the arm 15 is not carried back against its stop and the disc 22 remains in its rocked position so that the pin 37 is held in the ,ward direction sufiiciently to engage the camface 26 against the nose of the latch.

lever. The latch lever is thus released from the brake lever 30 and the latter, undertensi'on'of its spring 32, is swung into engagement with the table 19 to frictionally engage the same and bring the table 19 to a stop. I f

The tone arm 11 may be swung in a right hand direction as far as desired'beyond the edge of the table 19 and the device will automatically adjust itself to the record. As thearm is thus swung to the right the vibrating arm through the rod 23 and disc 22 is held from following the tone arm to anyappreciable extent so that immediately upon the return of the tone arm into its initial playing position, the vibrating arm 15 is swung against its stop 16 and the tone arm is thus frictionally turned within the ring 13. It is therefore unnecessary to ad just the mechanism for stopping the table by initially fitting the tone arm to the end oi the sound groove, as is the case in presentday devices, and consequently the device is not only automatic but requires no initial setting.

It is obvious that various changes and modifications may be made in the details of construction and design of the above specifically described embodiment of this invention without departing from the spirit thereof, such changes and modifications being restricted only by the scope of the following claims.

What is claimed is 1. A phonograph stop comprising a brake lever for engagement with the table of the phonograph, a latch lever arranged to interlock with the brake lever and hold it from said table, an oscillating disc having a shoulder arranged to normally engage the latch lever and hold it in interlocking engagement With the brake lever, slidable connecting means between the disc and the tone arm of the phonograph for moving the disc by the tone arm to release the latch lever, spaced contact members carried by the disc, a rotary member, a striker carried by the rotary member adapted to engage one of said members for shifting the disc upon each revolution of the rotary member and adapted to engage the second contact member upon the failure of the tone arm to return said disc to normal position.

2. A phonograph stop comprising an oscillating disc having a cam shoulder at one side, a brake lever adapted to engagethe table of the phonograph for stopping the same, a latch lever adapted to interlock with the brake lever for holding the latter from said table and having one end in the path of said cam shoulder, a yieldable arm adapted to be mounted on the tone arm of the phono graph for movement therewith in one direction and having connection With said disc for urging the same to turn in one direction, a pair of diverging pins carried by the disc, a rotary member connected to the phonograph adapted to be turned thereby upon rotationof the table, a striker stud carried by said disc and adapted to strike one of said pins whereby to rock said disc in an opposite direction against the tension of said spring arm and whereby to bring the second pin into the path of said striker stud, said tone arm being adapted upon continued movement to return said disc and the first pin to normal position, and said second pin being adapted to be engaged by said striker stud I upon the cessation of movement of the tone arm whereby to further advance said disc in one direction and engage said cam shoulder against said latch lever whereby said latch lever may be rocked to release said brake lever for binding engagement against the table. 7

JOHN FASTJ E. 

